I read a post somewhere saying "a hose hanger will not work well with the FX' and for some reason, I accepted that statement without really testing it out.
Last night, though, I finally got the bright idea to pull most of the hose to the "up side" of the hanger, so that the short hose was suspended mid air above my head instead of lying on the bed itself.
It worked very well. I could move without having to wake and reposition the hose. The weight of the hose did not pull the pillows from my nose, and I didn't have that short hose snaking against my chest.
It's not the greatest picture, but here is a photo so you can get an idea of how it works:

[Yes, the bear has terrible apnea, and CPAP really helps--see my blog for details]